Diễn đàn hỗ trợ Firefox

Been using Firefox for over a decade. But lately is has become so slow now. Often freezes up if more than two tabs are open or a website is in any way very complex. What settings and issues should I check? What has changed? I can run the same sites on Brave and Edge browsers with no issues or not nearly as slow and bogged down.

I've uninstalled Firefox and reinstalled it and cleared the cache. And it's still either not linking to certain sites at all or not, opening them correctly or completely. I don't wanna spend any more time than necessary on this since i've tried various ways to fix the issue.. If you can help me, that would be great. I guess I could use chrome, but I have used firefox for years.And as a rule, haven't had any problems up until now.

I'm uninstalled, Firefox and reinstalled it and cleared the cache. And it's still either not linking to certain sites at all or not, opening them correctly or completely. I don't wanna spend any more time than necessary on this. If you can help me, that would be great.And if not, I'll just go back to chrome

Greetings,

For the past three days (A/O 06/01/2026) I, (and others who have posted on various sites) cannot access a functioning log-in page for Google or Gmail via Firefox. If I (and others) use an alternate browser e.g., Edge, the log-in page functions and displays as it should. However, when using Firefox, the page displays as the image I've included - no functional 'log-in' icon and no Username or Password box. Using 'Private Viewing' makes no difference. As other browsers work, I will assume this is a Firefox issue. As there is no way to submit trouble tickets, I'll leave this here in hopes that someone from Firefox will pursue the issue.

Thank you in advance for any information or resolution.

Hi everyone,

I'm having a frustrating layout issue specifically when using Firefox (both on desktop and mobile). When I try to load a menu page I frequently visit, like this online [[sheetz menu|https://sheetzmenuguide.com/]], the fonts are overlapping, and the pricing tables are completely misaligned.

It makes the text almost unreadable, and some buttons are clipped off the edge of the screen. However, when I open the exact same link in Google Chrome or Safari, the site renders perfectly and everything is aligned correctly.

I have already tried clearing my browser cache and cookies, and I even disabled my extensions to see if an ad-blocker was causing it, but the issue persists. Is there a known rendering bug in the current Firefox build causing CSS grid or flexbox elements to break on certain sites?

Any suggestions on how to fix this on my end would be greatly appreciated!

I am confused. I'm an older guy. I don't use VPN. I have noticed that while I live near Kalispell, Montana (NorthEast MT). FireFox thinks that sometimes my PC is in the Seattle, WA area or the Phoenix, AZ area. I am tired of getting local ads for tires, hair salons, etc. in these states. How do I get FireFox to realize I am not in these states and to relocate me back to Montana?

I am using win 11

The electricity here went out briefly. My I-Mac shut down. When the electricity came back on, the bookmarks were gone. And also, now I cannot bookmark anything-cannot initiate a new bookmark

Hello all

 Firstly I have been using Firefox for about 2 decades and it has always worked perfectly - you can take a bow.
Now for my problem
I have been using Firefox for internet banking for many years without any problems - the usual login, password ans secret questions. Just after Xmas my bank updated it's website and suddenly nothing works. I was told that it now only works on Chrome and NOTHING else - not Firefox, Edge or anything else. I am able to log-in but can't see my account balances or perform any other functions - it just jams up to the point that I even have trouble closing Firefox.
I use Firefox exclusively because I don't trust Chrome or Google - they are just a massive data collection/sharing operation. I have Chrome Mask installed but it just doesn't make any difference.

 Is there anything that I can do or add-on to over-ride this problem?

I am running Mint Linux 22.2 with Firefox 151.0.1

I was able to enter an ip address that is on my local network into the search bar until a recent firefox update. Now when I type in the ip address, it goes to google with my address in the search bar. Is there a way that I can still access my server over a firefox?

So, I'm not exactly sure what's going on. Whenever I try to turn on Firefox's built-in VPN, either it tells me I cannot connect and to try again in a few minutes, or it just does not respond at all. I know this is vague, but it's literally everything I can muster. I looked through the settings, and nothing there helped.

Every time I boot up my computer firefox spams all of my previously opened tabs on my main screen. Due to the nature of my work, many of these windows are irrelevant to my work the following day. The only setting I can find to disable this behavior is already toggled off. Is this a bug? It's becoming really frustrating to close a billion windows every day when I come in to work.

I'm using the firefox instance packed in with Fedora, I believe it's a system package, not a flatpak.

When clicking on the shield for some sites the clear cookies and site data is grayed out. Any one know why this is happening?

I can still do this for an individual site by going through the Setttings->Privacy and security->Manage browsing data

-louie

This message was received when I tried to follow the support link "support.mozilla.com".

Secure Connection Failed

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. What can you do about it?

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.